Caffeine Stacking Calculator
Most caffeine calculators only count one drink at a time, but most people stack coffee, an energy drink, and pre-workout in the same day. Add every source you've had to see your real total against safe-limit guidance. Nothing uploaded.
Quick-add presets
Unlimited sources
Pregnant / breastfeeding mode ?
Color-coded status
Total vs safe limit
Caffeine Sources Today
Total Caffeine Intake
Total today
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Safe-limit reference ?
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Percent of limit
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General guidance only, not personal medical advice. Individual caffeine sensitivity varies.